| 摘要 |
<p>A centrifugal seal assembly (31) for a pump, including a pump casing having a pump chamber, a pump impeller, an impeller passageway and a rotatable pump impeller shaft, the seal assembly (31) comprising a rotatable main body (32) disposed within a seal chamber and attached to the pump shaft, a plurality of circumferentially spaced apart vanes (38) on one side of the main body (32), each vane (38) including a curved leading edge portion, the vanes (38) being configured such that Rv/Deo is in the range from 0.3 to 0.7 where Rv equals the curvature of the leading edge of the vanes (38) and Deo equals the outer diameter of the vanes (38).</p> |
